JPS5742396A - Treatment of highly concentrated waste liquid - Google Patents
Treatment of highly concentrated waste liquidInfo
- Publication number
- JPS5742396A JPS5742396A JP11890280A JP11890280A JPS5742396A JP S5742396 A JPS5742396 A JP S5742396A JP 11890280 A JP11890280 A JP 11890280A JP 11890280 A JP11890280 A JP 11890280A JP S5742396 A JPS5742396 A JP S5742396A
- Authority
- JP
- Japan
- Prior art keywords
- dilution
- vessel
- liquid
- nitrification
- denitrification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title abstract 6
- 239000002699 waste material Substances 0.000 title abstract 3
- 238000010790 dilution Methods 0.000 abstract 4
- 239000012895 dilution Substances 0.000 abstract 4
- 239000010802 sludge Substances 0.000 abstract 3
- 239000002351 wastewater Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To obtain purified water which has the same quality as that of water purified at a high dilution, without necessity of dilution or with a very low dilution within a short time in the treatment of a highly concentrated waste liquid.
CONSTITUTION: Nitrogen-contng. waste water is introduced through a pipe 14 into the first nitrification vessel 2, where the waste water is aerated with high efficiency by air fed from a sparger 11 and a sludge concentration is maintained at 10,000ppm or higher. Thereafter, the waste water is denitrified in the first denitrification vessel 3 under an anaerobic condition. A plurality of nitrification denitrification-combined steps comprising nitrification vessels 4 and denitrification vessels 5 are connected in series. Owing to this repeated combined treatment, the highly concentrated waste liquid 1 can be purified within a short time without necessity of dilution. Consequently, a pollutant removal rate per reaction space volume unit can be remarkably enhanced. The denitrified liquid 17, after aerated in an aeration vessel 6, is subjected to solid-liquid separation in a sedimentation vessel 7. The separated liquid part 18 is extracted through a line 8, while sludge is continuously returned and circulated as returned sludge 19 through a line 9 to a line 1.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11890280A JPS5742396A (en) | 1980-08-28 | 1980-08-28 | Treatment of highly concentrated waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11890280A JPS5742396A (en) | 1980-08-28 | 1980-08-28 | Treatment of highly concentrated waste liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5742396A true JPS5742396A (en) | 1982-03-09 |
| JPS6358639B2 JPS6358639B2 (en) | 1988-11-16 |
Family
ID=14747990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11890280A Granted JPS5742396A (en) | 1980-08-28 | 1980-08-28 | Treatment of highly concentrated waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5742396A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003071491A (en) * | 2001-09-03 | 2003-03-11 | Nippon Steel Chem Co Ltd | Excrement treatment system |
| JP2006231323A (en) * | 2005-01-26 | 2006-09-07 | Aqua Tec Kk | Decomposition treatment method for organic matter in organic polluted water and apparatus therefor |
| JP2007229637A (en) * | 2006-03-01 | 2007-09-13 | Mitsubishi Heavy Ind Ltd | Livestock manure processing system and method |
-
1980
- 1980-08-28 JP JP11890280A patent/JPS5742396A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003071491A (en) * | 2001-09-03 | 2003-03-11 | Nippon Steel Chem Co Ltd | Excrement treatment system |
| JP2006231323A (en) * | 2005-01-26 | 2006-09-07 | Aqua Tec Kk | Decomposition treatment method for organic matter in organic polluted water and apparatus therefor |
| JP2007229637A (en) * | 2006-03-01 | 2007-09-13 | Mitsubishi Heavy Ind Ltd | Livestock manure processing system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6358639B2 (en) | 1988-11-16 |
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